Device for measuring overflow from a gutter of a print head of an ink jet printer
US-2018361753-A1 · Dec 20, 2018 · US
waste ink containers
waste ink containers · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B41J2002/1856 |
| Official title | {waste ink containers} |
| Display label | waste ink containers |
| Total patents | 216 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 17 |
| 2017 | 17 |
| 2018 | 22 |
| 2019 | 30 |
| 2020 | 23 |
| 2021 | 23 |
| 2022 | 19 |
| 2023 | 20 |
| 2024 | 15 |
| 2025 | 15 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ink circulation device and inkjet recording device
US-10155395-B2 · Dec 18, 2018 · US
Valve opening/closing mechanism, ink supply system, and ink jet printer
US-10118402-B2 · Nov 6, 2018 · US
Liquid consuming apparatus and ink-jet printer
US-10093101-B2 · Oct 9, 2018 · US
Liquid discharge apparatus and waste liquid amount detection method
US-2018272720-A1 · Sep 27, 2018 · US
Inkjet recording apparatus
US-2018244069-A1 · Aug 30, 2018 · US
Liquid circulation device, liquid discharge device and liquid discharge method
US-2018244068-A1 · Aug 30, 2018 · US
Waste disposal for 3d printing
US-2018201021-A1 · Jul 19, 2018 · US
Waste liquid container and attachment
US-2018203407-A1 · Jul 19, 2018 · US
Cartridge having contact parts for fastening cartridge to holder
US-10000064-B2 · Jun 19, 2018 · US
Valve opening/closing mechanism, ink supply system, and ink jet printer
US-2018154649-A1 · Jun 7, 2018 · US
Liquid circulation device, liquid discharge device and liquid discharge method
US-9987853-B2 · Jun 5, 2018 · US
Multipurpose bottle apparatus and bottle loading mechanism and method
US-9975345-B2 · May 22, 2018 · US
Liquid consuming apparatus and ink-jet printer
US-9969172-B2 · May 15, 2018 · US
Liquid ejecting apparatus
US-2018126743-A1 · May 10, 2018 · US
Liquid ejecting apparatus
US-2018117927-A1 · May 3, 2018 · US
Liquid discharge apparatus, cleaning apparatus, and cleaning method
US-2018104959-A1 · Apr 19, 2018 · US
Digital printing machine
US-9878548-B2 · Jan 30, 2018 · US
Liquid ejecting apparatus
US-2018009227-A1 · Jan 11, 2018 · US
Waste liquid reservoir and liquid ejecting apparatus
US-9840078-B2 · Dec 12, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B41J2002/1856?
- CPC B41J2002/1856 is the Cooperative Patent Classification code for “waste ink containers.”
- How many patents are filed under CPC B41J2002/1856 (waste ink containers)?
- Our database includes 216 publications tagged with this CPC code.
- Is patent activity under CPC B41J2002/1856 growing?
- Publication counts under this code: 15 in 2024 vs 15 in 2025 (latest complete years).